JPH04266589A - Small rescue boat - Google Patents

Abstract

PURPOSE:To make a speaker difficult to be wet with water and to prevent a speaker from the occurrence of a housing. CONSTITUTION:In a small rescue boat, an operation handle 60 is located on a boat hull 1 and in the vicinity of the central part thereof, and a microphone 70 is removably locked in the vicinity of the operation handle. A speaker 7 is installed in a position deviated from the central line in a longitudinal direction of the operation handle and in front of a driver and in a high level.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention is applicable to one-person or two-person
This relates to a small rescue boat that can accommodate three people and sail on the sea.

0002

2. Description of the Related Art Conventionally, small boats with engines such as small jet propulsion boats that glide on water have been widely used. This propulsion boat glides on water at high speed and has good maneuverability such as sudden starts and sharp turns, so it is used as a rescue boat.

0003

[Problem to be solved by the invention] In the above-mentioned small rescue boat,
It is necessary to install a speaker so that the driver can use a microphone while holding the operating handle. On the other hand, since small boats tend to get caught up in waves and tend to tilt significantly, it is necessary for the speakers to have a structure or arrangement that prevents them from getting wet. Furthermore, depending on the positional relationship between the microphone and the speaker, the speaker may cause a so-called howling phenomenon, so it is necessary to prevent this phenomenon. Furthermore, for rescue purposes, it is preferable to provide means for allowing a person to easily board the boat from the water.

[0004] The present invention has been made in order to solve such conventional problems, and an object of the present invention is to provide a small rescue boat whose speakers are not easily wetted by water and which do not cause howling. The purpose is to

[0005]

[Means for Solving the Problems] In the present invention, an operating handle is provided near the center of the boat, a microphone is removably locked near the operating handle, and the longitudinal center line of the operating handle is The speaker is installed at a high position in front of the driver, away from the driver.

[0006] The boat may have a structure in which a seat and a stand for an operating handle are formed to protrude from the centerline of the hull, and a substantially single-plane deck is formed on both sides thereof. Further, the speaker may be attached to one side of the operating handle base, or a pole may be installed near one side of the operating handle base and the speaker may be provided at the upper end of the pole. Further, the microphone may be removably installed on the opposite side in the width direction of the ship from the speaker installation section. Further, the stern of the upper deck is provided with a rudder step that extends downward from the stern end and whose lower end is submerged in the water. It is rotatably attached to the upper deck so that the lower end is located above the upper deck, and is attached to maintain a lowered state in which the lower end is submerged in water and a raised state in which it is located above the upper deck, respectively. It may also be configured such that it is pushed up by the water pressure caused by the ship's navigation in the lowered state and moved to the raised state.

[0007]

[Operation] In the above configuration, the microphone is removably locked near the operating handle located near the center of the boat, and is located at a position off the longitudinal center line of the operating handle, making it easier for the driver to locate the microphone. Because the speakers are installed high up in the front, they are less likely to get splashed with water.
Furthermore, howling due to the misalignment of the microphone and speaker in the width direction is also prevented.

[0008]

[Embodiment] In FIGS. 1 and 2, a hull 1 has a hull member 11 and a deck member 1 integrally formed of FRP.
2 are joined to each other at their peripheral edges, and a portion surrounded by the hull member 11 and deck member 12 is formed into a sealed space so as to serve as a drainage volume. The hull member 11 has a bottom plate, a ship side plate, and a stern plate, and the deck member 1
An upper deck (foot deck) 10 is formed on the foot deck 10, and a rising portion 31 is formed on the peripheral edge of the foot deck 10 excluding the stern end, and the upper end thereof is folded back to form the side plate 2.
2 is overlapped and joined (joint part 23),
As a result, a hollow bulwark 8 is formed at the peripheral edge of the foot deck 10. The foot decks 10 are formed into a U-shaped substantially single plane that is continuous with each other on the front side, and the stern end of the foot deck 10 is formed to be open to the rear.

A seat base 44 is formed on the foot deck 10 so as to protrude on the centerline of the hull, a driver's seat 80 is formed on the seat base 44, and an operation handle base 61 is formed on the front side of the driver's seat 80 as a protrusion. An operating handle 60 is installed above it. Further, a front seat 81 is formed on the front side of the operating handle base 61, and a seat 81 is further formed on the side thereof.
A grip 83 for a seated person is formed. Further, a revolving light 6 is provided on the bow deck 17.

A microphone 70 is removably attached to one side (port side) of the operating handle base 61, and a speaker 7 is attached to the opposite side (starboard side). The driver 13 holds the microphone 70 with his left hand 14, grips the operating handle 60 with his right hand 15, and presses the throttle lever 6.
I am trying to operate 2. The speaker 7 is installed at a position away from the longitudinal center line of the operation handle 60 (in this embodiment, the center line of the hull 1), and the microphone 7
It is located in front of the driver 13 using the 0 and is at a high position where it will not be splashed with water while cruising. A lifebuoy 93 is detachably attached to the lower side of the speaker 7 with a band 94. Further, a storage compartment 82 is formed below the driver's seat 80, and the storage compartment 82 serves as a lid that allows the seat of the driver's seat 80 to be opened and closed, and has a watertight structure inside. 71 is stored.

FIGS. 3 and 4 show another embodiment of the present invention, in which a pole 77 is installed near one side of the operating handle base 61, and the speaker 7 is attached to the upper end of this pole 77. There is. Other points are similar to the above configuration. In this case as well, the speaker 7 is installed in a position in front of the driver 13, away from the longitudinal center line of the operating handle 60, and at a high position where it is unlikely to be splashed with water.

A rudder step 2 is arranged at the stern of the foot deck 10, and as shown in FIGS. 5 and 6, this rudder step 2 has a portal-shaped front shape and an inverted U-shaped upper end.
It consists of a main member 20 curved in a character shape, a connecting rod 21 that connects both sides of the main member 20, and arms 3 extending forward from both sides of the main member 20. In the normal installation state, the main member 2
The lower end of the boat 0 extends downward from the stern end and is submerged below the water surface 90. Also, the mounting member 5 on one side
A rib 54 is provided on the upper front side of the arm 3, and a gas spring (biasing means) 4 is rotatably attached to the rib 54 via a horizontal shaft 41, and the other end of the gas spring 4 is attached to the arm 3. The gas spring 4 is connected to the base end thereof by a shaft 42, so that a force that tends to expand the gas spring 4 is always applied thereto.

The ladder step 2 rotates so that the lower end of the main member 20 is submerged below the water surface 90 as shown by the solid line in FIG. 5 when in use, and is positioned above the foot deck 10 as shown by the imaginary line when not in use. configured to be possible. It is biased by the gas spring 4 so that both the descending state and the ascending state are maintained. Further, in the lowered state, the arm 3 comes into contact with a stopper 55 made of rubber or the like attached near the rear end of the mounting member 5, thereby preventing the ladder step 2 from lowering any further.

In addition, in the ascending state, the gas spring 4 is fully extended, thereby preventing the rudder step 2 from rotating any further forward, and in this state, the center of gravity G of the rudder step 2 is moved forward by m from the rotation center axis 30. Gas spring 4
This reliably prevents it from returning to the lowered state due to the pressing force.

[0015] The operation handle base 61 and the seat base 4
An engine room (not shown) is formed below 4, and an engine, a fuel tank, etc. are arranged in this engine room, and the engine rotates an impeller to suck water from the water suction port at the bottom of the ship and create a flow path. Turning force and propulsive force are generated by ejecting water in a predetermined direction rearward from a water injection port that swings in a horizontal plane at the stern of the ship.

In the above configuration, waves are launched from the water surface onto the foot deck 10 as the propulsion boat slides and turns, but since the foot deck 10 is continuously formed in a U-shape on a single plane, waves are not launched onto the foot deck 10. Water is smoothly discharged from the rear end to the stern end and does not accumulate inside the ship. Furthermore, since the speaker 7 is installed at a high position on the foot deck 10, there is little risk of it getting wet with water. Further, as shown in FIG. 1, the driver 13 on the driver's seat 80 uses the microphone 70.
The user grasps the button and makes a sound to give a predetermined instruction through the speaker 7. At this time, the sound from the speaker 7 flows backwards as the boat 1 moves, and if the microphone 70 is located directly behind the speaker 7, howling will occur. On the other hand, the speaker 7 is installed near the side of the operating handle stand 61, and since the positions of the two are shifted in the width direction of the hull, howling is less likely to occur.

Note that the microphone 70 may be locked on the same side in the width direction as the speaker 7, but since there is a slight risk of howling when removed from the locked position, It is preferable to arrange it on the side opposite to 7. Furthermore, if the speaker 7 is located behind the driver, howling will occur when the speaker 7 is used when the hull 1 is stopped, regardless of its position in the width direction. Must be installed at the front.

Furthermore, although a large moment is applied to the hull 1 during sharp turns, etc., in the above configuration, the operation handle 60, the seat 80, etc. are arranged on the hull centerline, so the recovery property is good, and both sides of the hull are Since the bulwark 8 has a large buoyancy space, the restoring force when tilting is increased and stability is excellent. In addition, in the above embodiment, seats 80 and 81
Although only an example is shown in which the seats are arranged vertically and the operating handle 60 is installed on the center line of the hull 1, it is possible to arrange the seats horizontally so that the longitudinal center line of the operating handle 60 is on the center line of the hull 1. The operating handle 60 may also have a non-matching configuration.
The speaker 7 may be installed at a position that is off the center line in the front-rear direction.

When the hull 1 is in a running state, the rudder step 2 is kept in a raised state as shown by the imaginary line in FIG. Furthermore, when the hull 1 is stopped and a person enters or exits the water, the rudder step 2 is lowered as shown by the solid line in FIG. do. The load at this time is supported by the rotation center shaft 30 and the stopper 55. When the hull 1 sails from this state, the water pressure caused by the water flow applies a clockwise rotational force to the rudder step 2 in FIG. The state shown in is reached.

The reason why the ladder step 2 is maintained in the lowered and raised states by the gas spring 4 is based on the following principle. That is, the movement trajectory of the shaft 42 provided in the ladder step 2 is a circular arc trajectory 3a centered on the rotation center axis 30, and the movement trajectory of the tip of the gas spring 4 in the most extended state (position of the shaft 42) is a circular arc locus 4a centered on the axis 41. The distance between the two circular arc trajectories 3a and 4a is greatest on the neutral line M that connects their centers of curvature (rotation center axis 30 and axis 41), and gradually decreases in any direction from there. That is, the gas spring 4 is most compressed when it is located on the neutral line M, and no matter which side it rotates from above the neutral line M, the expansion force of the gas spring 4 causes the gas spring 4 to be compressed below the neutral line M in FIG. A counterclockwise rotational force is applied to the ladder step 2, and a clockwise rotational force is applied to the ladder step 2 on the upper side. Therefore, the extension force of the gas spring 4 biases the ladder step 2 downward (counterclockwise) in the lowered state, and applies a forward rotational force (clockwise) in the raised state. In the descending state, the gas spring 4 is stopped by the stopper 55, and in the ascending state, the gas spring 4 is fully extended to stop further rotation, and each state is maintained.

[0021] In addition, when water pressure is applied to the lower end of the rudder step 2 by the boat 1 in the descending state, the rudder step 2 rotates clockwise around the rotation center axis 30 against the force of the gas spring 4. The rotational force decreases as the lower end of the ladder step 2 rises, but when the gas spring 4 passes over the neutral line M, the force of the gas spring 4 acts on the rotational force in the clockwise direction in Figure 5. This results in the rising state shown by the imaginary line.

In the above embodiment, the ladder step 2 may be moved from the lowered state to the raised state by manual operation. In this case, it is sufficient to hold the vicinity of the upper end of the main member 20 by hand and rotate it until it passes through the neutral line M, and then the force of the biasing means 4 automatically raises the main member 20. Also, when moving from the ascending state to the descending state, it is only necessary to rotate it by hand until it passes through the neutral line M. Note that various other known means can be employed as the ladder step. Furthermore, with the configuration of the above embodiment, the rudder step can be stored with one touch after use, and even if the rudder step is forgotten to be stored, the rudder step can be rotated by the pressure of the water flow as the ship moves, and the urging means can be used to rotate the rudder step. Since the rudder step is automatically retracted, there is no problem even if the boat is sailed with the rudder step forgotten.

[0023]

As explained above, according to the present invention, the microphone is removably locked in the vicinity of the operating handle located near the center of the hull, and the microphone is attached to the operating handle in the longitudinal direction. Because the speaker is installed at a higher position in front of the driver, it is less likely that water will splash onto the speaker, and howling may occur because the microphone and speaker are misaligned in the width direction. This also prevents the occurrence of

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an entire rescue boat showing an embodiment of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a side view of the entire rescue boat showing another embodiment of the present invention.

FIG. 4 is a plan view thereof.

FIG. 5 is an explanatory side view of the rudder step device in the stern section.

FIG. 6 is a partially cutaway rear view of the ladder step in a raised state.

[Explanation of symbols]

1 Hull 2 Ladder step 7 Speaker 8 Bulwark 10 Upper deck (foot deck) 44 Seat stand 60 Operation handle 61 Operation handle stand 70 Microphone 77 Paul 80 seats

Claims (6)

[Claims] Claim 1: An operating handle is provided near the center of the hull, a microphone is removably locked near the operating handle, and the microphone is located at a position off the longitudinal center line of the operating handle, so that the operation handle cannot be operated. A small rescue boat characterized by a speaker installed at a high position in front of the person. 2. Claim 1, wherein a seat and a stand for an operating handle are formed projectingly on the center line of the hull, and a substantially single-plane deck is formed on both sides thereof.
Small rescue boat as described. 3. Claim 1, wherein the speaker is attached to one side of the operating handle base.
or a small rescue boat as described in 2. 4. The small rescue boat according to claim 1, wherein a pole is installed near one side of the operating handle base, and a speaker is attached to the upper end of the pole. 5. The small rescue boat according to claim 1, wherein the microphone is removably locked on a side opposite to the speaker installation section in the width direction of the boat. 6. The stern part of the upper deck is provided with a rudder step that extends downward from the stern end and whose lower end is submerged in water, and this rudder step rotates around a horizontal rotation center axis at its front end. The ladder step is rotatably attached to the upper deck so that the lower end of the ladder step is located above the upper deck, and maintains a lowered state where the lower end is submerged in water and a raised state where the lower end is located above the upper deck. 3. The small rescue boat according to claim 1, wherein the small rescue boat is biased to move in the lowered state, and is pushed up and moved to the raised state by receiving water pressure from the boat while it is in the lowered state.